squalid

Concise Oxford English Dictionary © 2008 Oxford University Press:
squalid/ˈskwɒlɪd/

▶adjective

• 1 extremely dirty and unpleasant.

• 2 showing a contemptible lack of moral standards: a squalid attempt to buy votes.

– derivatives
squalidly adverb,
squalidness noun.

– origin C16: from L. squalidus, from squalere ‘be rough or dirty’.